Odometer and speedometer mechanism



ANin/.2 192e;

J. BERG:

ODOMETER AND SPEEDOMFTER MECHANISM Filed April `14, 1919 Hf 2- 34 1057 3 1415 1a 11 15 xml- 3 Sheets-Sheet 1.

INVENTOR.

dosephewe J. BERGE ODOMETER AND SPEEDOMETER MECHANISM Nov. 2 ,1926. 1,605,576

` Filed April 14, 1919 5 Sheets-Sheet 2 E? 21 29 59 Z9 Z6 39 y 7M 35 IH 58 vf \H l A 57 41\/ 41 40 I 40 15 INVENTOR.

Patented Nov. 2, 1926 UNITED STATES PATENT OFFICE.

J'QSEPH BERGE, 0F FELINT, MICHIGAN, ASSIGNOR T0 .A C SPARK PLUG`COMPANY, OF Y FLINT, MICHIGAN, A CORPOMTON OF MICHIGAN. f

ODOMETER ,AND SPEEDOMETEB MECHANISM.

.Appneaapn `md April 14, .1919. serial No, 289,821.

My invention relates to speedometers designed for use Vivith selflpropelled vehicles .to indicate lthe {speed'at whichV the saine is moving, andjincluding `also registering or odometer mechanism for .registering the distance travelled .by the vehicle, and particularly .to ,speedometers` of the magnetic type ivlierein'fa l' ht .and delicately supported metallic spleecn or equivalent speed indicating ,member aving'clraracters lto indicate the rate 'of .movement per .unittime is dragged along bythe action .of an ,armature rotating in a magnetic' field in which the eed .cu-p or' equivalent .element is located, tne'extent or degree .of .the rotary' or angular movement .of the speed indicating member being dependent upon ,the speed at whiclrthe armature is rotated through suit- -able driving mechanism from a Wheel of the vehicle, and such. angular movement being opposed b a hair spring operatively -connected wit the said indicatingmember. v The principalobjectof my` invention is to provide .certain improvementsin and relating, generally, to speedometers of thel class or .type above referred to, the same vincluding certain lstructural lfeatures of the casingV of the instrument, the location of the separate mechanisms concerned, respective lv., with l.the s .eed indicating ,and with the istance llave ed registeringfunc'tions relative to the casing or shell of the instrument, and the :arrangement and disposi-tion of said mechanisms relative to one another, all with the .end 'in vieiv of providing a speedometer which may .be Amore readily and cheaply manufactured and assembled than has heretofore vcommonly been the case.

A further object of my invention is to provide .an improved casing'structure made up of two .separate and distinct casing memhers or sections, and wherein the metal cutting or boring operations necessary for the production of the said ,sections may for the most part be performed by imparting re1ative rotary motion to the casing section bcing operated upon and to a metal cutting or boring .tool about a single axis, or about a plurality of axes parallel with one another, the two casing sections when finished and the operating mechanism of the instrument properly assembled therein being secured together in a permanent manner to provide a unitarv hollow closed casing therefor, the lc asingtrus provided being dustproof and water-tight, and the bearings for the operative elementsof the device being for the most part entirely within and protected by Vthe Wall of the casing.

A' further object of my invention is to provide an' improved speedometer of the Vtype or class above referred to and in which Vthe speed indicating'mechanism of the instrument is located entirely within one of the two sections'of the casing thereof, and the odometer'mechanism in the other, the casing members being annular in cross section and cup shape in form, the bearing for the main driving shaft of the instrument being' formed in the end wall of and having its axis coincident with the axis'of the cas'- 'i-ng section 'Within which the speed indicating mechanism is located, while the'end wall of the section which contains the odometer mechanism supports or carries a resetting member adapted .tomove along and rotate about 'an axis coincident with the axis of the casing and vwith that of theV main driving shaft.

.A 'further object of my invention is to provide improved means whereby the rotating armature and the speed cup of the instrument may be assembled and adjusted independently of the other mechanism thereof, and then introduced into the speed indicating casing section and secured in place therein independently of the other elements of the speed` indicating mechanism, and a further object of my invention is to provide cer-tain improvements Vin and relating to the end wall of the odometer section of the casing which supports a resetting member for said mechanism in a central position, and has openings vor windows throughwhic'h the speed indicating cup and the distance traveled registering mechanism may be seen.

lith the above and other objects of invention in view, my invention consists in the improved magnetic speedometer and subordinate'parts and subcombinations and separate features thereof illust-rated in the accompanying .drawings and hereinafter described and claimed, and in such variations and modifications thereof as will be obvious to those skilled in the artto which my invention relates.

ln the drawings accompanying and forining a part of this specification anljvherein the preferred embodiment' of; i'ny invention is illustrated:

Figure 1 is a View showing my improved magnetic speedometer in end -elevation, and. as seen from a .position in 'frontthereof when the same is in u se;

Figure 2 is a vieri? sli'oiviiig ii'f""se'ctfi'on`V taken upon a vertical central planeextending longitudinally of'Ft-heiiistrument "and .indicatedbythe line 2 2, Eigure 1;, Figure 3 .is a `viewfshowing the-two sections of thecasing in s'ide elevation and with the speedindicating mechanism' assembled in one, .and the odometer mechanism. in the other'of said sections, preparatory to securing the sections together'by-the sleeve, ,also

shown in this view.

Figure 4 is a view showing -thes eed indicating mechanism in elevation ,an assembled in its casing. section or' ifi'e-m ber;v

Figure l5 isa. similar vien* .sliovvingthe odometer mechanism assembled Within its casing member orsection;

Figure 6 is a fragmentary'viewshowing a detail of my device, and

lower andI s1 Figure 7 is ayiew showinga section taken jupon, a horizontal planeindicatedby the line 7, 7, Figure 2, looking down, the casing, however, beinvshown as sectioned upon a stantially. centrally located plane.

Referring now to the dravvinggthe exterior shell or casing of my, improved ,magnetic speedometer .is madeup oftwoparts orsections 10, 11 each of which is cupfshape in form and annular in cross-section, and the `open ends ofwhicli sections abut one vwith the other along a joint indicated by the numeral 12, the meeting ,edges of the e- .ripheral walls of saidsections-.preferably or shoulder 15 adjacent the open-end of the casing member 10, and which band is of such a diameter relative to the diameter of the meeting ends of the casing members that considerable force is necessary to force it into the position shown -in Wlnch it overlays the joint between and holds the two casing. members together, because of the excessive friction .between its inner surface and the portions of the casing, particulariy the section 11 thereof, which it overlays,

BEST A'VAFLABLECP, "f

of thecaSing section 11 in the embodiment .of my 'invention' illustrated, `and; is prefer- :ably providedwith azi-outwardly extending ange 16 having screw holes 17 whereby the fl-iiistrum'ent? i'a'yibelsecured in place in an openingprovided in a dash or instrument board,'and""th'e""ividth of the said securing menjiber ispreferablysuch that its. end 18 abats against ape'r'ipherally "extending flange -19 provided upon the :section 11 when the 'i'jing is its final position. 'A suitable 'varn'ish 'or coating lmay bef :appliedjfto l the Surfaces Eof 'the casing members to bev covered by tlie ing before, the sanielis forced onto the casing,' 'tot 'thereby' s 'ecure additional tightness and "secuiity b etWeenthe ring and the' casingfinembers or sections The vsection meniber 10'is showiifas provided :with a 1 ey`20 exteiidingfatrightangles to lthe shoulder 15, .the Harige 14 as cut away 'at the location of the'lrey, order toin- 'sure a definite andpredeter'inined angular relationship@between thecasing as a Whole" .and the' holding and flocking ring The' 'casing,n ie'i r ibeis:10, ll'are commonly made or" 'iion-'inagneticmetah such 'as brass or aluminum, iiifwli'ichjcafs'e the ring'13 will 'be made of' ir'on, iri' .'order to 'provide la mag- 4rieti-c' shield f fgr 'instrument and preserve same is pla c edin`fan opening in an iron or pressedfste'el dashboard, it being appreciated 'fstruin'eiitI fcalibrated and adjusted, for it is forcedonto'theasiiig during' the manufacture of the device and `for the" purpose of holding the'casing elements together, and

is not intende'djlte be afterward reinoved except'fasfsuch 'afcourse may be necessary Ito 'repairithe instrument. The casing prc.fid'ed' by 4the casing memf bers or sections 16,11 is cylindricalin form, and the .bottoinl or 'end Wall 21 of the section' 1Q is provided `with a centrally disposed bearing for the inain driving shaft 22 of the instruii'ieiitthe saidshaft .being driven from the wheel of tl ie i`eliicle with which the device is used by and through any suitable driving meaiisgandgthe saincfbeing centrally located rela t ie'to the' casingand rotating about an argisjvvhich coincides .with the axis ofthe casingin the embodiment of my invention illustrated and herein de-' scribed. Y

The "drivingfslfiaft 'QQ- parries a worin 28 which operates the Adistance traveled registering or odometer meclianismfof my device,

and' es'i beviel 'gear M'whicli meshes vwithl set-.oi l bevel' gearstlirough ivhic'h the .rotating arii'iature 26 ofthe deviceis'driven,

the said gear 25 being supported from a supiii coincident withaxis of the main driving shaft 2Q and wit'hthge. casing asa who1e, and, upon pulling the said member outwardly, thel 'sa-me isbro'ught into operative engagement'with resetting mechanism whichV forms the subjecthiatteiff'of another application, wlieleuponand upon rotating the said member b'y means of alinob 'Z5 thereupon, the trip. odometer wheels may be reset to a zero'reading. 1, t

-It'will be appre'eiatedthat the fact that theexteriorjand interior surfaces of the casing member 10, the bearing for the -main driving 'shat"2 2, lthe threaded boss 76 (which haste do with the connection of the driving shaftthrougl'i which .the instrument is driven therewith), the joint at the opent, end of the 'said casing member, are all concentric'with one another, permits all the parts or surfaces to be finished at a single chucking operation, and at a minimum of expense, and that he'axes of the holes for the magnet :holding and adjusting screws, for the'holding screw'sBO for the supporting bracket 27, andfor the bearing 'for one end of the odometer driving shaft (i6, being 'parallel with the aXs of the casing member and the driving' shaft permits these last mentienedliolestobe formed with a minimum of 'expenseand 'bythe use of comparatirely simple jigs, fixtures -or oit-her devices used in making .the casing section in question. Likewise all -the ,operations necessary to be .performed uponlthe casing member 11 may be performed at vaniininmm of expense, the hearing 'for Vthe resetting 'member 71 being concentric -with all the surfaces of the said section which have to be finished, which surfaces again are concentricwith one another. ln fact every machine operation, withthe'exception of that necessary to provide the seats 'for the bearings for the element LQ -50, and for the odometer shaft 68, may he performed by relatively rotating the casing members and the tool which operates upon them about a single axis, or about axes parallel with one another` -an'd the bearing for the -element 49-50 and for the odometer shaft being, as will be observed in planes at right angles to the axes hereinbetore referred to, require ordinary and easily performed machineroperations and comparatively simple jigs or equivalent devices for their production. Finally. a dust and water proof casing is provided and all the bearings of the device are either located entirely within the casing members or are covered by the sleeve 13, which is in fact a part of the casing of the finished and assembled instrument as it is actually sold and used. thus avoiding the necessity of drilling through the wall of the casing to provide bearings for the various operating elements of the instrument, and the fact that the main driving shaft extends through an end BEST AVAILABLE COPl Wallvof, the casing providesfor a more convenient disposition of the shaft through which the instrument. is driven from a wheel of the vehicle, and for an arrangement of said last mentioned shaft such that it is inaccessible to and out of the way of the operator ofthe vehicle, as the same is entirelyupon that side of the dash or instrument boardwhich is remote from the operator.

Having thus described and explained my inventiommI :claim and desire to secure by Letters Patent:

1.n a device of the class described, two cup-shaped casing sections annular in crosss'ection, the peripheral walls of which abut with one another whereby a hollow closed casing isprovided; ,an annular 'securing member overlying the joint between said sections whereby they are held together; a flange carried by said -securing member whereby the instrument may be secured in place in an opening provided to receive it, and indicating mechanism located within said casing and visible from a position outside the same.

, In a device of the class described, two cnplshaped casing sections annular in crosssection and. the. peripheral walls of which abut with one another whereby a hollowclosed casing'is. provided, and one of which members is provided with a circumferentially' extending ledge or. shoulder adjacent lts open' end; an annular securing member overlying the joint between said sections and having' an inwardly extending flange at one of its ends adapted to abut agains said ledge, and .which *securing member holds said sections together; `an outwardly extending flange carried'by said securing member and located at the other end thereof whereby the instrumentl may be secured in place n an opening provided to receive it and indicating mechanism located within said casing and visible Afrom a position outside the same.

3. In a device of the class described, two cupshaped casing sections annular in crosssection and the peripheral walls of which abut with one another whereby a hollow closed casing is provided, and one of which members .is provided with a circumferentially extending ledge or shoulder adjacent its open end; an annular securing member overlying the joint between said sectionsI and serving to hold them together and having an inwardly extending flange which abuts against said ledge, and the width of which securing member is such that it overlays the entire peripheral surface of the other of said casing sections; an outwardly1 extending' flange carried by said securing member and located at the end thereof opposite said first mentioned flange whereby the instrument may be secured in place in an opening lli) cerned with its operation may be assembled as a. unitary mechanism carried by the bracket or support 27, and the unit thus assembled secured within thev casing section V10 by the screws 30, thus greatly facilitating the assembling of the device and reducing the expense incident thereto.

The worm 23 carried by the main driving shaft 22 meshes with a inion .49, and this .pinion is formed-integra ly with a worm whiclii'sin mesh. with a pinion 51 Vupon the .odometer driving shaft 46 hereinbefore referred to. The shaft .46 carries a worm 52 vwhich meshes with a pinion 53 vand Athrough which a' setof totaler-.season odometer .discs or wheels designated collectively by the reference numeral 54,.'fanda set of trip odometer discs or wheels designated collectively by the reference numeral. 55,. are operated, the elements aforesaid constituting means whereby and through vwhich the odometer mechanism isopeiated by Sand from the main driving shaft of Ithe instrument,

. The end of. the combined pinion and worm .gear element or member 49-50 are supportedin bearings which in turn .are supported from the -end wall-210 the casing member 10,-and thefsame is rotatable about an vaxis lying-in a plane which extends at.

right angles to the axis of the main driving .shaft 22, said bearings being shown as provided by. sleeves 56 having holes to receive. .pivots at the ends of the saidcombined member, and which sleeves .are provided each; with a circumferentially 'extending groove 57. These sleeves lit into seats so shaped as to receive them and which'seats are formed in lugs 58 formed integrally with the end-wall 21, each seat having a ridge 59 adapted tolie within a groove57, and the' free ends of which, indicated at 60, may be swaged by means of a suitable tool, after the bear ings have been placed upon the ends of the element 49-50 and introduced into theirl seats, to thereby expand the metal of the. ridges and cause it to overlay the exposed. portion of the bottoms of the. grooves, to 'A thereby hold the bearing in place, as will.

be understood.

` The end of the casing member or section 11 which contains the odometer mechanism is closed by an end Wall 61 having a flange at its periphery, and one or more periphen.

and is commonly unfinished, thus providing. strength at the periphery of the wall whereA strength is needed, while at the same time providing a scheme whereby .the cost of maiiufaeture is much reduced. This endwall is BEST AVAILABLE COP\ provided-witlia bevelled opening or window througli which the .ligur'es on the speed cup 35 maybe seen, and-with two other bevelle'd.l openings or Awindows 64, 65 located respectivelyin front of the total and trip odometer discs 54, 55. These openings are glae'djby glass, mica, or` like transparent members cemented goi, otherwise secured in 'recesses formed in tlieinnersurface of vthe ,end ;wal l 61', ltliiisf providing a cheaper and more desirable construction than is secured ,in devices wherein a corresponding walllis made entirely of, glass, whichvis ordinarilyspecially.formedand requires a .spe-

Acial and voftenan expensive mechanism, member 'ofrvdevice4 for holding it in place. The glass; dwhich extends across the opening .63;,isprovidedgwitha single vertical crossline67, whereby the speedV at which the vehicle is'goingmay be .the more accurately.

BothI LAand fthe total sets .of odometer dises-Q'IQwheels are supported upon a single supporting shaft 68 extending at right ,angles to the main: driving shaft v22 and par- 'fallel with- =the '-,end .Wall .of the section 11,

.andithe endsof'vgwhich shaft lare journaled 4in bearings at 69, 70, identical in all essential particulars with' the bearings ,for the ...ends ofthexlnieinber .4Q-50 hereinbefore explained in detaihz, The .seatsfor the bearing. .sleeves..offthese bearings are -ormed g in liigsfupon. tlie casing.,sectionA 11, so that the, .said shaftis supported from the said section. .and in .a position adjacent the open in, questio n glies inabout the plane of the ..jointg12 beta-*eenA the casing members, as

.best shown in'Figures 3 and 5, and the. said j bearings are covered and protected by the sleeve or securing member 13 when the same is .in 1 place, as wilhbe appreciated.

'The inventionto which this present application'rclates isfin no Way concerned with .themechanism whereby the odometer discs which iorm .tliesets 54, are operated one {romand .by another, nor with the details of -the .resetting mechanism for setting the trip discsback. to zero at .the end of each trip. This. invention does, however, compreliendtlie means for operating the resetting .nieclianism the same comprising a reciprocating and rotary rod or resetting member71 extending through and shown as having a tight bearing in the end wall 61 of the casing member 11, and the inner end of which member moves within and is guided by a tubular guide or bearing membei' 'T2 carried by a support 73, which support is secured to the inner surface of the saidend wall by means ot' screws 74 so that the resetting member' 1s supported from the `e'nd 'Wall of the casing sections within which the 'odometer vmechanism is located. The axis ofgthe resetting'niember in question is i1D to tl'ieeby'steadyfthe saine,l as will be ap- 12s ers '32er a yoke, the upper portion 33 of -which extends to a position over the stud 'shaft- 28ad is provided 'with' ajewvel bearingat- '34 for the u per end "of a' vertically attending pivot or s iaft whereby the metal- 1C lic'speed indicating 'member-or element' of the. instrument shown as in the for'xnp a speed icup' fufpoii' which'characters indi- 'catinoF the rate at which the vehicle is movcarried by thestudsli'aftf28 to 'thereby sup- 'po't'zthe said cup' delicately, andv permit'it to move about its 'supporting pivot ivitli a minimum of friction` The Wspeed'onp and the-'yoke elementl33 are f'pro'vded each" with a- "stop, which stops 'a'ada {'indi'cated by the reference numeral 136, and

'-'ivith'thespeed-cnp 35 2and acts in opposition "to the orces tendingto rotatethe'said mein-'- as A'the-v speed -of AAthe vehicle increase@ g 'and 'to return'said member to 'its initial oraerol speed' position when the vehicle is at rest, asis ii'sii'al'iii :magneti-'c speedometers of 'the class 'to which my 'invention relates.

The rotating v'arniatiire 26 is located within and 'moves liii close proximity tothe interior of the speed 'cup 35, and the poles i of the C-shaped magnet '38 of the instru- Ament lie opposite the periphery of the armature and closely adjacent the exterior of 'the speed cup, whereby and when ithe ar- 'matnr'e is rotated the speed ciipWili be moved away from-its initial zero speed po sition and dragged along in opposition to the action of the hair snrinU 37 as thes eed of the vehicle. increases., the rotary or angular movement 'of the 'speed cup being proportionate to the rate of rotation of the armature which, in turn, is proportionate to the :speed of the vehicle, as in magnetic speedometers of the type or class to which my invention relates. rThe magnet 38 is supported at the middle portions of its two arms upon lugs 39 provided upon the interior of the section IO of the casing and located one upon 'each side thereof. -as by means of screivs 40 and 'cli-ps "5 di, and the 'said magnet is adapted to =be` ingare impressed, thelonffer end of the said l5 zshaft 5 being supported 'in a jewel bearing plied-to' engage with one another' as' BEST AVAILABLE com '8 rocked upon the said lugs as pivotal supports tothereby move the poles thereof to Ward or"away from the periphery of the fspee'dnp in calibratingtlie instrument, such rocking lmovement 'being imparted to the magnet'b'y' means of a screw 42 in threaded engagement witlia yoke 43, see Figure 2,

-operatively'f connected with the lower end "othe'fina-gnet and through which'the said lower end may be moved to the left and the "poles 'thereof movedcloser to the speed cup V the movement of the parts in question 'in' av reverse direction being produced by 'loosening the screw 42 and permitting the l spring fifi, iiormallyunder compression to expand." 'The y0ke43 'is guided and kept in pro r positioiijhy 'the side Walls of a groove a5 orined'in'the'inner surface of the casingY member 10.

'Tilt' l*willbe'I :i-p'preciated from what has been' thus 'far explained that the enti re mechanism 'concerned with the rotation of the speed cup 35 into'a position such that a. member vupon its periphery, and which indicates the speed at' which the vehicle is running, may 4be seen' through -anopeiiing in the end wall of the casingsection ll, or, as otherwise stated, all the speed indicating elements and combina tions of elements to that end are located, within the casingr member or section l0, and

may be assembled and adjusted therein entirely independently o f the casing member or section 11 a'iid'tiie odometer mechanism,

which' in a like 'manner is located entirelyv within 4the said last mentioned casing niemltei". 'There is therefore no connection what ever between "the speed indicating mechanism regarded i'ii its entirety and ivhich is located 'tvithin thej'casing member if), and the disj'taiice registering 'or odometer' mechanism, si-

milarly considered, which is 'located Within "the casing section l1, the only element of the -fiiistriiment having an 'operative connection 'with 'both casingr members being an odometer A'driving shaft. 46 one end of which is suppor-ted in ahem-ing 47 carried by the end ivall 'of the casing member l0, and the other `end of `Whiohis supported in a bearing -48 carried by the end wall of the casing menibefr 11, 'and 'the axis of which shaft is parallel with the axis of the main driving shaft 22.

It therefore volloiivs that the complete 'speed 'indicating mechanism may be assembled 'the casing section 10, and the complete odometer .mechanism in the Acasing section l1, each mechanism entirely independent of the other, and the 'two sections then placed with their open ends in contact, and the 'sleeve or ring 13 then forced into piace ,to thereby secure the casing members 'together and complete the assembling of "the instrument, all 'as indicated in Figure 3 of lthe drawings.

It will 'furthermore -be appreciatedthat the VSpeed cup 3:5 and 'the 4eleiiients directly 'conlli) lll

provided to receive it; and indicating mechanism located within said casing and visible from a position outside the same.

4. In a device of the class described, two cup-shaped casing sections annular in crosssection the peripheral walls of which abut with one another whereby a hollow closed casing is provided and one of which members is provided with a circumferentially extending ledge or shoulder adjacent its Aopen end, and with a key' extending from said ledge;` an annular securing member overlying the joint between said sections and the peripheral surface of the other of said sections and serving -to hold said sections together, said securing member having an inwardly extending flange which abuts against said ledge and which flange is provided with a recess or notch-to over said key; and a securing flange carried by said securing member and located at the end'thereof opposite said inwardly extending flange, the inner portion of said securing flange where it merges with said annular securing member abutting against a periphorally extending fiangecarried by the second mentioned of the casing members aforesaid.'

In a device of the; class described, two casing sections the peripheral walls -of which abut with one another whereby a hollow closed casing is provided, means for securing said casing sections together, speed indicating mechanism located within one of said sections, odometer mechanism located within the other of said sections, a main driving shaft supported in suitable bearings carried by said casing, and gearing through which both said speed indicating mechanism and said odometer mechanism are operated from said driving shaft.

6. In a device `of the class described, two cup-shaped casing sections the peripheral walls of which abut with one another whereby a hollow closed casing is provided, means for securing said casing sections together, speed indicating mechanism located within one of said sections. odometer mechanism located within the other of said sections, a main driving shaft supported in a bearing carried by the end wall of the casing section which contains the speed indicating mechanism, gearing whereby said speed indicating mechanism-is driven from said main drivingshaft, an odometer driving shaft the ends of which are supported in two bearings carried one by each of said casing sections, gearing whereby said odometer driving shaft is driven from said main driving-j shaft, and gearing through which said odometer mecnanisrn is driven from said odometer driving shaft.

7. ln a device of the class described` two cup-shaped casing sections the peripheral walls of which abut with one another whereby a hollow closed casing is provided, means for securing said casing sections together, speed indicating mechanism located within one of said sections, odo-meter mechanism located within the other of said sections, a main driving shaft supported in a bearing carried by the end wall of the casing section which contains the speed indicating mecha-Y nism and the axis of which shaft extends at right angles to said end wall, gearing whereby said speed indicating mechanism is driven from said main driving shaft, an odometer driving shaft the axis of which is parallel with the axis of said main driving shaft, and the ends of which are supported in two bearings carried one by the end wall of each casingmember, gearing whereby said odometer driving shaft is driven from said m'ain driving shaft, and A gearing through which said odometer mechanism is driven from said odometer driving shaft.

8. In a device of the class described, two cylindrical cup-shaped casing' sections annular in cross-section and the peripheral walls of which abut with one another whereby a cylindrical hollow closed casing is provided, means for securing said casing sections together, speed indicating mechanism located within one of said sect-ions, a main driving shaft supported in a bearing carried by the end wall of said casing section and the axis of which shaft coincides with the axis of said casing and whereby vsaid speed indicating mechanisms is operated, odometer mechanism located within the other of said casing sections,- a reciprocating and rotary odometer resetting member supported by the end wall o'f said last mentioned casing section and movable along and rotatable about an axis which coincides with the axis of said casing, and means whereby said odometer mechanism is driven from said main driving shaft.

9In a device of the class described, two cylindrical cup-shaped casing sections annular in cross-section and the peripheral walls of which abut with one another whereby a cylindrical hollow closed casing is provided, means for securing said casing sections together, speed indicating mechanism located within one of said sections, a main driving shaft supported in a bearing carried by the end wall of said casing section and the axis of whichshaft coincides with the axis of said casing and whereby said speed indicating mechanism is operated, odometer mechanism located within the other of said casing sections, an odometer driving shaft the axis of which is parallel with the axis of said casing, bearings carried one by said first mentioned and the other by said second mentioned casing section and whereby the ends of said odometer driving shaft are supported` gearing whereby said odometer driving shaft is driven from said main driving shaft, and gearing whereby said odometer mechanism vis driven from said odometer driving shaft.

10. In a device of the class described, two cylindrical cup-shaped casing sections annular in cross-section and the peripheral walls of which abut Vwith one another whereby a cylindrical hollow closed casing is provided, means `for securing said casing sections together, speed indicating mechanism located within one of said sections,.a main driving shaftsupported in a bearing carried by the end wall of said casing section and the axis of which shaft'coincides with the axis of said casing and whereby said speed indicating mechanism is operated, odometer mechanism located Within the other of said casingr sections-and having a shaft arranged at -right angles to the axis of said casingr and the ends of which are supported in bearings carried by the peripheral wall thereof, and a plurality of odometer discs supported by said shaft, and means whereby said odometer mechanism is operated from said main driving shaft.

.lL-In a device of the class described, two

.- cylindrical cup-shaped casing sections annular'in cross-section and the peripheral walls of Which abut with one another whereby a cylindrical hollow closed casing is provided. means for securing said casing sections togethel-, speed indicating. mechanism located Within one of said sections, a main driving shaft supported in a bearing carried by the endwall of said casing section and the axis of which shaft coincides with the axis of said casing and whereby said speed indicating mechanism is operated, odometer mechanism located within the other of said casing sections and having a shaft arranged at right angles to the axis of said casing and the ends of which are supported in bearings carried by the peripheral wall thereof, and a plurality of odometer discs supported by said sha-ft, and an odometer driving shaft arranged parallel with the axis ot said casing through which said odometer mechanism is driven from said main driving shaft.

12. In a device of the class described, two casing sections annular in cross-sect-ion and the peripheral Walls of which abutwith one another, whereby a hollow closed casingis provided; speed indicating mechanism located within one of said sections: a bearing carried by the end wall of said section; a main driving shaft rotatable in said bearing and the axis of which is at right angles to said end wall; odometer mechanism located within the other of said casing sections and having a shaft extending at right angles to Said main driving shaft, and a plurality oiz odometer discs supported by said shaft-z bearings carried b v said second mentioned casing section and located at the joint between said casing section, and whereby the ends of said odometer shaft are supported; and an annular securingr member overlying the `ioint between said casing sections and the bearing for said odometer shaft whereby said sections are held together.v

13. In a device of the class described, a casing section; a bearing carried by the end wall of said section; a main driving shaft rotatable in said bearing; speed indicating mechanism located within said section and driven by said driving` shaft; a combined pinion and gear member driven from said driving shaft and rotatable about an axis lying in a plane extending at right angles to said driving shaft; odometer .mechanism opera-ted by said combinedpinin and gear member and twobearings supported from the end wallo said casing. section and wherein the ends of said combined pinion and gear member are supported.

14. In a device ot the class described, a casing section; a. bearing carried by the end wall of said section; a main driving shaft rotatable in said bearing; speed indicating mechanism located Within said section'a'nd driven by said driving shaft; a combined pinion and gearmember driven romsaid drivingfshaft and rotatable about aniaxis lying in a plane extending. at right angles to said driving shaft; odometer mechanism operated by said combined pinion andgear member; two lugs carried by the end wall of said casing section and having each a'seat adapted to receive a bearing sleeve; and two bearing sleeves located one in each of said seats and which sleeves support the ends ot' said combined pinion andgear member, the form of said seatsbeing such that the metal thereof may be swagedand made to overlie a portion of said bearing sleeves, to thereby hold them in place.

l5. In a device of the class described, a cup-shaped casingir section open. at one end, and having an end wall at its other end, said end wall having an opening through which odometer mechanism may be read: odometer mechanism located within said section and having a shaft arranged parallel with the end wall thereof, and a plurality of odometer discs or wheels carried by said shaft; bearings carried by said casing section and wherein said speedometer shaft is rotatable; a centrally located reciprocating and rotatable resetting member supported in a bear ing formed in the end wall of .said section for resetting said odometer mechanism; and means for operating said odometer mechanism.

16` In a device of the class described, a metallic cup-shaped section having an end wall. and an opening therein; odometer mechanism assembled and held in place within said section, to thereby provide a unitary assemblage of elements complete in itself and adaptedv toA be assembled with l 17. In a device of the class described, a

other lelements to thereby provide a complete instrument; a. Centrally located tubular support carried by the end wall of said section, and the axis of which is disposed at right angles to saidend wall; a

reciprocating and rotary resetting member' supported in said tubular support for resetting said odometer mechanism; and means for operating said odometer mechanism.

substantially cylindrical casing having parallel end wallsyone at each end thereof; a centrally locatedbearing carried by one of said end walls; a main driving shaft rotatable insaid bearing and about an axis coincident withv thel aX-is of said casing; speed indicating mechanism locatedwithin said casing Yand operated by said driving shaft; and a centrally located resetting said .casing and operated by said driving shaft; and a centrally located resetting member lcarried by the other end wall of said casing for resetting said odometer mechanism, said resetting member 'heilig rotatable about an axis coincident-with the axis of said casing and with said main driving shaft. v

18. In a device of the class described, a casingl made up of two cup-shaped casing members, :the open .ends-otwhich are sebearing carried by the other 'end wall of said casing.

19. In a device of the class described, two casing sections annular in cross section and the peripheral walls of which abut with one another whereby a hollow closed casingv is provided; and an annular securing member made from a magnetic material overlying the joint between s'aid sections and whereby they are held together.

20. In a device lofthe class described, two casing sections annular in cross section and the peripheral walls of whichabut with one another whereby a hollow closed casing is provided, and one of which members is provided with a circumferentially extending ledge or shoulder adjacent its'open end; and an annular securing member made from iron or equivalent magnetic material overlying the joint betweeirsaid sections, and having an inwardly v extending 'flange adapted to abut against said ledge to thereby hold said sections together.

2l. In a device of the class described, two fasing sections annular in cross sectio'nand the peripheral walls of which abut with one another, whereby a hollow closed casing is'.

provided; and an annular securing-member made from iron or equivalent `magneticl material overlying the joint between said sections and whereby said sections are held together, said securing member having a ange whereby the instrument may be secured in place'in an opening provided to receive it.

In testimony whereof I afx4 my signature. v

JOSEPH Benen. 

